Home / 76,538.17-105,622.10-42,549.76

Finding the Fourth Proportional to 76,538.17, 105,622.10 and 42,549.76

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Solution

The fourth proportional to 76,538.17, 105,622.10 and 42,549.76 is: 58,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,538.17 : 105,622.10 = 42,549.76 : x
  2. Step 2: Convert to fraction form
    76,538.17/105,622.10 = 42,549.76/x
  3. Step 3: Cross multiply
    76,538.17x = 105,622.10 × 42,549.76
  4. Step 4: Simplify right side
    76,538.17x = 4,494,194,610.08
  5. Step 5: Solve for x
    x = 4,494,194,610.08/76,538.17
  6. Step 6: Final answer
    x = 58,718.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.